500V 330µF High-Voltage Aluminum Electrolytic Capacitor

500V 330µF High-Voltage Aluminum Electrolytic Capacitor

The 500V 330µF capacitor is a high-voltage aluminum electrolytic capacitor designed to provide reliable and durable performance in various electronic applications. With its sufficient capacity, pressure resistance, and high-temperature resistance, this capacitor ensures excellent quality and a long service life. Specifically suited to welding machines, frequency converters, inverters, and mining PSU primary-side bulk capacitor applications.

Featuring a maximum voltage of 500V, this capacitor handles high-voltage primary-side rectified DC bus with ease. Compact 30×50mm form factor allows convenient integration. Maximum working temperature 105°C for reliable operation even in demanding mining facility environments.

Typical Use in PSU / Industrial Repair

• Primary-side bulk capacitor replacement — restoring bulk filtering on mining PSU DC bus.
• Welding machine repair — bulk filter on industrial inverter welders.
• Frequency converter repair — DC bus filter on industrial motor drives.
• Solar inverter repair — bulk filtering on solar power conditioning systems.
• UPS / industrial backup — bulk filter on UPS DC link.

500V 330µF Capacitor Specifications

FAQ — 500V 330µF Capacitor

Q: 500V vs 450V bulk caps — when does the extra margin matter?
A: For 220V AC input rectified to ~310V DC bus, 450V caps work but provide only ~140V margin. 500V caps give ~190V margin — important for line-transient survival and safety standards compliance. For mission-critical or high-availability designs, 500V is the safer choice.

Q: How do I diagnose a failed bulk cap?
A: Visual inspection first — look for bulged tops, brown / orange residue around the base, or vented top. Electrically: measure ESR with an ESR meter (failed caps show 10× to 100× higher ESR than spec), or measure capacitance (failed caps lose 50%+ of rated value).

Q: Can I use higher-capacitance (e.g., 470µF) instead?
A: Higher capacitance is generally safe — provides more bulk filtering. Lower capacitance reduces hold-up time and may cause flicker / dropout under transient loads. Match or exceed the original rating; verify the larger cap physically fits.

Q: Bulk pricing for repair shops?
A: Yes — email contact@lys-sz.com with your monthly volume for tier pricing on high-voltage caps.

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• 330µF 6.3V SMD Aluminum Cap – Antminer Hashboard

PSU / industrial repair shops stocking 500V 330µF caps by the case? Email contact@lys-sz.com for bulk pricing. Worldwide shipping from our Shenzhen warehouses.